Suzuki Grand Vitara JB416 / JB420 / JB419. Service manual - part 371
6C-27 Power Assisted Steering System:
Rotor and Vane
• Check sliding surfaces of rotor and vane for wear and
damage.
• Check clearance between rotor and vane. Replace
pump assembly if any defect is found.
Clearance between rotor and vane
Standard: 0.015 mm (0.0006 in.)
Limit: 0.027 mm (0.0011 in.)
Relief Valve (Flow Control Valve) and Its Spring
• Check fluid passage of relief valve and orifice of
connector for obstruction (clogged).
• Check sliding surface of relief valve for wear and
damage.
• Check free length of relief valve spring (1). Replace if
any defective is found.
Free length of relief valve spring
Standard: 22.0 mm (0.866 in.)
Limit: 19.0 mm (0.748 in.)
P/S Pump Inspection (J20A Engine Model)
S6JB0A6306025
Check P/S pump as follows.
• Damage of pump body.
• Oil leakage from pump body.
• Wear and damage of pulley.
• Abnormal noise when pulley is turned by hand.
If abnormality is found, replace P/S pump with new one.
P/S Pump Inspection (F9Q Engine Model)
S6JB0A6306030
Check P/S pump as follows.
• Damage of pump body.
• Oil leakage from pump body.
• Wear and damage of pulley.
• Abnormal noise when pulley is turned by hand.
If abnormality is found, replace P/S pump with new one.
1. Thickness gauge
IYSQ01630056-01
IYSQ01630057-01
IYSQ01630058-01
IYSQ01630059-01